'Controversy Over the Moon' (1971) 15m, dir. Charles L. Finance. This film describes the efforts of scientists to determine the composition of the moon and how it affects the solar system, what meteors aremade from and how craters are formed. The debate here, between geologists Jack Green, who advocates vulcanism, and Eugene M. Shoemaker, who advocates meteorite collision, is over what caused the Copernicus carter. Another in the AGI (American Geological Institute)'Eath Science' series of films from Encyclopaedia Britannica, in which John Shelton served as the advisor.